CY8C21123_11 Datasheet, PDF (10/43 Pages) Cypress Semiconductor – PSoC Programmable System-on-Chip Low power at high speed

CY8C21123, CY8C21223, CY8C21323
20-Pin Part Pinout
Table 5. Pin Definitions – CY8C21323 20-Pin SSOP
Pin
Type
Pin
No. _{Digital Analog} Name
Description
1
I/O
I P0[7] Analog column mux input
2
I/O
I P0[5] Analog column mux input
3
I/O
I P0[3] Analog column mux input
4
I/O
I P0[1] Analog column mux input
5
Power
V_SS
Ground connection
6
I/O
P1[7] I²C SCL
7
I/O
P1[5] I²C SDA
8
I/O
9
I/O
P1[3]
P1[1]
I²C SCL, ISSP-SCLK^[3]
10
Power
V_SS
Ground connection
11
I/O
P1[0] I²C SDA, ISSP-SDATA^[3]
12
I/O
P1[2]
13
I/O
P1[4] Optional EXTCLK input
14
I/O
P1[6]
15
Input
XRES Active high external reset with internal
pull-down
16
I/O
I P0[0] Analog column mux input
17
I/O
I P0[2] Analog column mux input
18
I/O
I P0[4] Analog column mux input
19
I/O
I P0[6] Analog column mux input
20
Power
V_DD
Supply voltage
LEGEND A = Analog, I = Input, and O = Output.
Figure 6. CY8C21323 20-Pin SSOP
A, I, P0[7]
1
A, I, P0[5]
2
A, I, P0[3]
3
A, I, P0[1]
4
VSS
5
I2C SCL, P1[7]
6
I2C SDA, P1[5]
7
P1[3]
8
I2C SCL, P1[1]
9
VSS
10
SSOP
20 VDD
19 P0[6], A, I
18 P0[4], A, I
17 P0[2], A, I
16 P0[0], A, I
15 XRES
14 P1[6]
13 P1[4], EXTCLK
12 P1[2]
11 P1[0], I2C SDA
Document Number: 38-12022 Rev. *Q
Page 10 of 43
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